.
72%
77%
80%
83%
1997
1998
1999
2001
8700
8760
8990
8920
12.36%
12.16%
11.47%
11.15%
11.49%
11.84%
12.21%
12.57%
10.87%
11.49%
12.35%
12.54%
1997
1998
1999
2000
1:1
15:17
23:25
27:29
X
Y
Z
X and Z both
1996
97
98
99
30%
45%
50%
60%
2,00,000 tons
20,00,000 tons
20,000 tons
2,00,00,000 tons
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